An excessive heat warning will be in place through Saturday in San Diego County deserts and mountains, with dangerously hot conditions anticipated.
According to the National Weather Service, temperatures in the desert areas are expected to reach between 112 and 116 through Wednesday and hotter conditions with highs between 116 and 120 degrees are in the forecast from Thursday to Saturday.
“Extreme heat will significantly increase the potential for heat-related illnesses, particularly for those working or participating in outdoor activities,” the NWS said.
In the mountains, temperatures of up to 104 degrees are expected.
A heat advisory will be in effect from 10 a.m. Wednesday through 8 p.m. Saturday in San Diego County valleys, with temperatures possibly reaching 105, forecasters said.
“Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. This is especially true during warm or hot weather when car interiors can reach lethal temperatures in a matter of minutes.”
Things will be cooler along the coast, thanks to a returning marine layer, but temperatures will still be warming than usual.
City News Service contributed to this article.